Which of the following statements about a controlled experiment is true?

1 answer:

8 0

The controlled experiments are performed by the scientists, when they want to study the changes in the sample on changing a single variable. So, the correct answer is option (b).

In case, all variables are kept same, no changes would be observed in the experiment sample. A controlled experiment can be performed on living thing as well as non living. But, controlled experiment cannot be performed on the things which are influenced by a lot of variables, as they cannot create realistic results. So, the option (a), (c), and (d) are incorrect.

You might be interested in

Compare and contrast point mutations and chromosome mutations and explain the basis for classifying a mutation as beneficial, ne

zepelin [54]

Point mutations are of two types: Substitutions of bases that are the change of one base of DNA by another. And Transitions that are replaced on a pyrrhic basis by another pyrrhic or a pyrimidine by another pyrimidine. Transversions: substitution of a pyrrhic base by another pyrimidine or vice versa. These mutations are negative because they affect only one of the nucleotides, and therefore, only one triplet of bases are affected. When the mutation does not affect the individual it is a silent mutation. Chromosomal mutations Changes in the structure of the diploid chromosomes, where one of the chromosomes has a mutation, will have another normal. They can hinder the process of meiosis in the carrier since it hinders the correct pairing of the homologous chromosomes. It would produce an unfeasible offspring or with mutations.

5 0

3 years ago

Read 2 more answers

Two processes in which water is converted to vapor

Anarel [89]

Its:
1. Evaporation
2. Transpiration

3 0

2 years ago

Read 2 more answers

What do ethical theories attempt to do?

umka2103 [35]

There are two a and c just pick one